Workings in the Red Vein, Nine Feet and Upper Five Feet seams, Lewis Merthyr Collieries

Scope and Content

The following collieries are referred to on the plan: Bertie, Trevor, Hafod and Lady Lewis Pits. Estate boundaries are shown on the plan. The plan is undated but shows mine workings from 1893-1944. Scale 6 Inches: 1 Mile.

Administrative / Biographical History

National Grid Reference for Lewis Merthyr Colliery: ST039911. National Grid Reference for Lady Lewis Colliery: ST025923.

Custodial History

Previous reference number: DNCB/75/1/4